The Larson Electronics WALSB-50AI-125.250V-1X50A-1X30A-6X20A is portable spider box for indoor, outdoor and rugged applications. This unit allows operators to use 125/250V power via a CS6375 electrical inlet. The device supports one feed through receptacle for 125/250V equipment, as well as one 250V receptacle (L6-30R) and six 125V (5-20R) GFCI receptacles. For robust protection, the spider box is NEMA 3R rated and protected by impact/flame resistant weatherproof covers.

This portable spider box uses a 50-amp, 125/250V CS6375 inlet for bringing power into the unit, while the outlet is a 50-amp, 125/250V CS6369 feed through for powering 125/250V tools and machines. The device supports one feed through receptacle for 125/250V equipment, one 30-amp, 250V, L6-30R receptacle and six 20-amp, 125V, 5-20R twistlock GFCI receptacles. GFI trip level is set to 4-6 mA with a maximum trip time of 25 mS. The WALSB-50AI-125.250V-1X50A-1X30A-6X20A spider box features short circuit, overload, open neutral and reverse phasing protection. Should circuit overload occur, the unit will automatically shut down to protect the spider box from damage.

The housing on the WALSB-50AI-125.250V-1X50A-1X30A-6X20A is constructed of 16-gauge steel with a NEMA 3R enclosure rating. This device is approved for wet locations and features heavy-duty impact/flame resistant weatherproof covers. Two angled legs at the base of the unit and low center of gravity ensures this spider box does not tip over in the field.

Certification: Larson Electronics is a UL 1640 panel shop and certified to build portable power distribution systems. All units are built in accordance to NFPA 70 (National Electric Code). All equipment is NEMA 3R rated for indoor and outdoor use and provide a degree of protection against dirt, water, and ice. NEMA 4 and NEMA 4x equipment can be equipped upon request.

Applications: Indoor or outdoor applications including but not limited to, construction sites, plant maintenance, plant turnarounds, shows, exhibits and shipyard operations. These units are popularly used in applications where external power sources are often necessary. We also offer class rated transformers for use within explosion proof and hazardous location environments.

Larson Electronics is a manufacturer and we can build portable power distribution systems to your specifications. Although we carry several models of portable power distribution systems in stock, we can deliver custom ordered units almost as quickly as our prebuilt units. If this model does not meet your needs, please contact us at 1-800-369-6671 or sales@larsonelectronics.com to discuss your specific requirements.

Larson Electronics manufacture a wide variety of custom power distribution systems. The pictures displayed for this unit are a general representation of form factor and may not accurately represent this exact configuration in every detail due to being custom builds. The specifics for this configuration are listed in the specification table and one-line diagram.

*All grounding shall comply with state and local codes and meet the minimum requirements of the National Electronic Code section 250*

There are several types of transformers available on the market today, which come with their own respective pros and cons. Generally speaking, for medium-size transformers, the units can be categorized as oil-filled (liquid-type) or dry-type (solid state).
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